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首页> 外文期刊>Inorganic Chemistry Frontiers >Solvent-assisted linker exchange enabled preparation of cerium-based metal-organic frameworks constructed from redox active linkers
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Solvent-assisted linker exchange enabled preparation of cerium-based metal-organic frameworks constructed from redox active linkers

机译:溶剂辅助接头交换使能由氧化还原活性接头构成的基于铈的金属 - 有机骨架制备

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Cerium-based MOFs have shown much potential in fields such as catalysis and gas separation. However, hexanuclear Ce(iv) node MOFs are challenging to form in the presence of redox active species due to the ease of formation of Ce3+ in solution. Here, a facile solvent-assisted linker exchange procedure was developed to functionalize Ce-UiO-66 with amine and hydroxyl groups to produce MOFs that were unachievable via de novo methods. The resulting functionalized MOFs showed enhanced catalytic activity when testing the hydrolysis of the nerve agent simulant, dimethyl 4-nitrophenyl phosphate. By using an amine functionalized analogue of Ce-UiO-66, the hydrolysis rate was nearly doubled. With this study, we demonstrated that solvent-assisted linker exchange (SALE) is an effective tool to incorporate redox active linkers in Ce based MOFs that are otherwise unattainable de novo.
机译:基于铈的MOF在催化和气体分离等领域中显示出很大的潜力。 然而,由于CE3 +在溶液中的易于形成,己核CE(IV)节点MOF在氧化还原活性物质存在下挑战。 这里,开发了容易溶剂辅助接头交换程序以使Ce-UIO-66用胺和羟基官能化,以产生通过De Novo方法无法实现的MOF。 当测试神经剂模拟剂的水解时,所得官能化的MOF显示出增强的催化活性,磷酸二甲基4-硝基苯基。 通过使用Ce-UIO-66的胺官能化类似物,水解速率几乎加倍。 通过这项研究,我们证明了溶剂辅助接头交换(销售)是一种有效的工具,可以在CE基于CE的MOF中纳入氧化还原活性接头,这些工具是否定的De Novo。

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